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CHAPTER 4 <br />ALTERNATIVE PLAN CONCEPTS <br />The runway length required by aircraft depends on factors such as weather, distance of haul, and weight, <br />which consists of passenger, cargo, and fuel load. Reduction in distance of haul and weight can result in <br />reduction of required runway length. However, airlines have minimum operational policies, and in some <br />cases, do not operate aircraft in certain situations and below certain runway lengths. It is expected that <br />extending Runway 16L/34R from 6,000 feet to 6,500 feet will allow a greater range of air carrier aircraft to <br />operate on this runway, and prevent scheduled commercial service from having to cease service at EUG, <br />and divert to other airports. <br />There are two options to extending Runway 16L/34R: one is to the north, the other to the south. Both <br />options require relocation of existing facilities, and construction of new ones, including 500 feet of runway <br />and extending the connecting taxiway. However, it is expected that the length of 6,500 feet can likely be <br />attained without excessive mitigation or effect on the airport and adjacent facilities. <br />Exhibit 4-2 <br />Runway 16L/34R Extension Alternative 1 <br />(see ) <br />Runway End 16L has a Precision Instrument Approach Procedure, which guides aircraft to the runway <br />end during inclement weather. The navigation and instrumentation is provided to aircraft by an <br />Instrument Landing System (ILS). The ILS consists of an approach light system and two signal <br />transmitting devices (a glide slope and a localizer). These three elements are specifically located relative <br />to the runway end, such that if the runway end is moved, the ILS components must also move. These <br />ILS components have associated critical areas, required to be free of objects that may interfere with the <br />signal transmission and view of lights. Extending Runway End 16L would require the relocation of the <br />approach light system (Medium Intensity Approach Light System with Runway Alignment Indicator Lights <br />(MALSR)) and the glide slope antenna. <br />The Precision Instrument Approach Procedure is established by the FAA, and disseminated to pilots <br />through recurring FAA publications. If Runway End 16L were to be relocated, the procedure would <br />require adjustment in the FAA’s system and the FAA’s publications would need to be edited and re- <br />published, so that aircraft would be directed to the new runway end. <br />As Runway End 16L is extended north, the associated FAA-defined design surfaces also shift north. <br />Several of these surfaces would be contained on airport property, and would likely not be an issue. <br />However, the aircraft approach surface would shift to the north, closer to utility poles and towers along <br />State Route 99, and to those on Fiddler’s Green Golf Course. The structures would likely require removal, <br />relocation, or adjustment to provide an unobstructed approach path for aircraft. It is expected that the <br />relocated approach surface would provide adequate clearance over Green Hill Road. <br />The Precision Instrument Approach Procedure serving Runway End 16L has with it a large Runway <br />Protection Zone (RPZ), another FAA-defined design surface. The RPZ would shift north such that a <br />significant portion of it would encompass Fiddler’s Green Golf Course. Although a golf course may under <br />certain situations be considered compatible land use within an RPZ, it is generally desired and <br />advantageous for the airport to control land within the RPZ. This may lead to the acquisition of this <br />property in an effort to maintain safety in the air and on the ground. <br /> <br />4-4 <br />Eugene Airport Master Plan Update <br />(February 2010) <br /> <br />